BF991
N-channel dual-gate MOS-FET
Rev. 03 — 20 November 2007
Product data sheet
IMPORTANT NOTICE
Dear customer,
As fro...
BF991
N-channel dual-gate MOS-FET
Rev. 03 — 20 November 2007
Product data sheet
IMPORTANT NOTICE
Dear customer,
As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.
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NXP Semiconductors
NXP Semiconductors
N-channel dual-gate MOS-FET
Product specification
BF991
FEATURES
Protected against excessive input voltage surges by integrated back-to-back diodes between gates and source.
APPLICATIONS
VHF applications such as: – VHF television tuners and FM tuners – Professional communication equipment.
PINNING
PIN 1 2 3 4
SYMBOL
DESCRIPTION
s, b source
d drain
g2 gate 2 g1 gate 1
DESCRIPTION
Depletion type field-effect tra...